Engine 97 4.6 Gt

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 12, 2015

#1

• Nov 12, 2015

• #1

I'm rebuilding my 4.6 using my block and Pistons. And using a 98 cobra rods and crank and top end. What else do I need to do? I'm new to the modular engines. I have a Cleveland in my 70 mach 1. It's totally a different animal. Any help would be greatly appreciated. Thanks

Sent from my SM-G928V using Tapatalk

 

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 14, 2015

#2

• Nov 14, 2015

• #2

I guess I'll just ls it.

Sent from my SM-G928V using Tapatalk

 

Cobra42898

Member

Jun 23, 2015

47

9

18

Gouldsboro, PA

Nov 14, 2015

#3

• Nov 14, 2015

• #3

First, I'll just suggest that you not reuse stock pistons. Go forged. Rods can vary, depending on which Cobra. 03-04 Cobra rods? Great choice. If you have a Cobra crank, use it but is it necessary? I still don't know what hp level or induction, or even what heads you're planning to use. What do you want this car to do, in terms of running a number, or a dyno sheet?

Tom

PS - I'll be nice since it seems you're new here. Nobody like a chevy. Dont do it.

 

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 14, 2015

#4

• Nov 14, 2015

• #4

I am new. I was kidding. I have the 4.6 planned out. We want to road race it next summer.

Sent from my SM-G928V using Tapatalk

 

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 22, 2015

#5

• Nov 22, 2015

• #5

Going with the cobra 4 v heads. The reason I was going with stock is it raises comp ratio to 10.5 to 1. Where I believe the cobra is around 8.5 to 9 to 1. I'm new to the modular engines but I have been reading up on them.

Sent from my QMV7B using Tapatalk

 

COramprat

...I can take it. I think.

20+ Year Stangneter

Mar 2, 2003

8,474

1,463

223

Sea of Tranquility

Nov 24, 2015

#6

• Nov 24, 2015

• #6

So what exactly is your question?

 

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 25, 2015

#7

• Nov 25, 2015

• #7

Am I going the right direction with build?

Sent from my QMV7B using Tapatalk

 

COramprat

...I can take it. I think.

20+ Year Stangneter

Mar 2, 2003

8,474

1,463

223

Sea of Tranquility

Nov 29, 2015

#8

• Nov 29, 2015

• #8

I agree with going with forged internals unless costs are an issue. But building a 4.6 isn't much different than building anything else basically. The 4V will be a higher revving engine but you'll need some low end help with gears. 3.73's would be my choice. Put a roots type blower on that thing and let it eat.

 

bobs70stang

New Member

Nov 12, 2015

8

0

1

Nov 30, 2015

#9

• Nov 30, 2015

• #9

I have a 3.73 posi in it out of a 96 cobra.thanks for input.

Sent from my QMV7B using Tapatalk